Pneumatic conveyer.



3. n W. L. HERV-Y. PNBUMATIC GONVEYEB unicum: rusa AUG. s. 1901.

907,692, .Patented Dec. 22, 1908.'

ifi .i

UNITED sTATEs PATENT oEEIcE.

JOHN HIERVY, OF KANSAS CITY, MISSOURI, AND WILLIAM L.,HERVEY, F POARCH OKLAHOMA., ASSIGNORS TO THE KING COTTON PICKER CO., OF KANSAS CITY MISSOURI, A CORPORATION OF MOURI.

PNEUMAIIC CONVEYEB.

Specification; of Letters Patent.

Patented Dec. 22, 1908.

Application icd August 1907. Serial 11o. 387,928.

To all wlzcm it may concern:

Be it known that we, JOHN HERVEY and WILLIAM LSHERVEY, citizens of the United States, residing, respectively, at Kansas City,

Jackson county, Missouri, and Posten,

Roger Mills county, Oklahoma, have irlvented certain new and useful Improvements I in Pneumatic Conveyers, of which the following is a specification.

g This invention relates to pneumatic conveyers, and more especially to tubes for such machines through which a suctional action is established for the purpose of picking the cotton and conducting it to the 'desired 3 point, and our object is to produce a cotton picking tube which will perform its function efficient-ly and reliably, and which is perfectly flexible but cannot collapse In action, and which furthermore is of simple, durable and cheap construction.

To this end the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order` that it ma be fully understood reference is to be ha to the accompanying drawing,in Which:-

Figure 1, is a side view, partly broken away, of a cotton picking tu e embodying .our invention, and also shows a rece tacle, such as a fan casing, into which the tu e i*- charges, and a mouth-piece which forms a rigid prolongation of the free end of the tube.v

Fig. 2, is an enlarged central vertical section of a portion of the tube and also shows a portion of the mouth-piece. Fig. 3, is a central longitudinal section of a portion of the tube at a bending point thereof and with the elastic part in the position it occu ies when the suctiona acti n takes place. ig. 4,1'5 a horizontal section taken on 'the line IV-IV of Fig. 2. l

In the said drawings, 1 indicates any suitable reccptacle, such as a fan casing, provided wih a collar 2, leaving a bayonet-slot 3 to receive the pin 4 projecting outwardiy from a tube 5, secured by an encircling clamp or collar 6 of .any suitable type, to and Within a iiexible or elastic tube 7, the opposite end of said tube being likewise secured by sn encircling clamp or collar 8 u on a sleeve 9 having an outwardly projecting pin 10 for engagement with a bayonet-slot 11 of a mouth-piece 12, said mouth-piece forming a rigid extension for the tube for convenience in accurately directing or handling the tube, said placed opposite the open sideo a boll of cot ton to insure the latter passing directly into 'the mouth-piece when a suctional action is set up through' the tub-e through any suitable suction or blower apparatus, not shown. The mouth-piece is provided with a handle 13 for the convenience of the erson who will handle and direct the tube 1n the picking operation.

For the purpose of holding the tube expanded without regard to whether it is straif'ht or bent, a metallic lining is provided, the same consisting by preference of a series of short tubes 14 turner. back at their ends to form external beads or eniargcments 15, the tubes being longitudinally alined with the juxtaposed beads in contact with each other.

"Vhen the tube is straight the beads will be in contact all around but when the tube is bent as shown in the upper part of Fig. 2 and in Fifi. 3, the tubes at opposite sides of the bend assume angular positions with relation to each other and therefore touch for a distance proportionate to such angles, that is to say,.if the tube is only slightly bent the area of contact between the lining tubes will be greater than if the bend of the tube is more abrupt, as will be readily understood.

The lining tubes and their beads are of such proportin that they stretch tube `7 sufiiciently to provide an annular space 16 around each linin tube between the beaded ends thereof, and establishing communication between said spaces and the interior of the lining tubes are perforations 17 in the latter.

When the sui-.tianal action is in progress the elastic tube collapses between the beads of each lining tube and against said tubesso as to bridge and close such perforations, as shown in Fig. 3. By providing for the collapse of the elastic tube at opposite sides of each pair of abutting lining tubes, such elastic tube is placed under heavy tension o posite the joints between the tubes and wlhen the latter assume the angular relation described they increase' such tension by stretching the elastic tube at the points between them, the tension being such that the suctional action will not affect such stretched portion. This guards against the ossibility of tube 7 being drawn or sucked into the space between the ends of the lining tubes mouth-piece in practice being adapted to be Y and inched between the latter when the elastic tube and a plurality short tubes 2o next ending action str htens the tube at fitting together endwise wit said tube and auch point. It will thus be seen that 'the provided with one or more perforations. suctionaltubeisree to bend in any direction 2. A cotton picking tube, com rising an and yet maintain a smooth passageway of eiastic tube and a plurality of s ort tubes substantially uniform diameter for its full len h. provided with one or ino-e perforations and rom the above descri tion it will be a \with external enlargements at their ends.

fitting together endwise within said tube. 25

parent that we have pro uced a tube o t e In testimony whereof we affix our signacharacter described poessin the features tures, in the presence of two witnesses. of advantage enumerated, and we Wish it to JOHN HERVEY. be understood that We do not desire to be WiL-LMI L. HERVEY. limited to the exact details of construction Witnesses to the signature of J obn Hervey: shown and described, for obvious modiiica- H. C. RcnGEns, tions will occur to a person skilled in the art. G. Y. T HORPE.

Having described the invention what we Witnesses to the signature 0f lVilliaxn L. claim as new and desire to secure by Letters Hervey: Patent, is:- U. N. WALDROP,

1. A cotton picking tube, comprising an J. B. Bnrr'roN. 

